4-(7-benzyl-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-4-yl)morpholine

morpholin-4-ylmethanethiol

2-(吗啉甲基)丙烯酸

4-(2-丁炔-1-基)吗啉

2-(4-吗啉基甲基)苯酚